Tag Archive: Battery

I recently got ahold of one of these NEJE DK-8-KZ 1000mW Laser engravers and have been spending the weekend playing with it.

I haven’t got it to cut paper yet (haven’t got any spare paper) but have been engraving thin plywood.

While the working area is 36x36mm a resolution of 512x512mm it is still a lot of space to work on.

Being that it also runs on 5v means that once an image is uploaded to it, the laptop can be unplugged and the engraver run from a duel output phone charger (I have it running on an Anker)

the only slight issue a lot of people are getting is that it requires an un-signed driver and both Windows and OSX have trouble with it. This is down to the fact that it uses a CH340 USB to serial interface, which are becoming more common with Chinese “Knock-off” electronics.

Signed drivers do exist and a search of the internet will show them and they work well on OSX 10.11.06 (El Capitain). I haven’t upgraded to sierra yet even though it’s been out for ages so can’t say if it works on that.

While the software is a little simple, it means that a child of 12 years old can understand it. (yes I have tested a 12-year-old child with it!)

I have tested it with text and have been able to produce clear text readable at 2-3mm high.

This isn’t a full review and it needs a few mods to make it safe (the included glasses work but are rubbish) to make it safer for people who would like to watch it.

Well that is all I have for now as I have a few items to review and a few recycled tools to design for others to try and build.

So long for now.


Someone took notice of my explorations and moved on to explore other sources for the cells.

Warning: I have been busy and haven’t been able to verify that this works!

Reader CMCristy started with what I wrote and when on to experiment, and wrote up his finding here.
I hope this is of help to fellow PSP owners.

PSP 110 Battery Revive, Part 2

PSP 110 Battery Revive, Part 2

All things seam to be working and reading correctly but I guess only time will tell.

PSP 110 Battery Revive.

Well After a bit of soldering and electronics jiggery pokery my PSP 110 battery is charging.

The internals of the PSP 110 battery

No wonder it failed when it was soldered like that.


This picture showing the internals of the battery including the Charge control and monitor board. By my guess the way the B+ terminal was soldered may have been responsible for it failing. I disconnected the battery from the pcb and checked the terminals to find they were reading 0.2 ish volts showing a dead cell. After cobbling a batter charger together to charge at 2.3v with very little milliamp’s and leaving it on for 11 hrs, I checked the cell voltage a various times to find it slowly climbing until it reached 2.3v.

Fearing it left on over night I disconnected the battery and charge and left it. The next morning I checked the voltage to find it still holding 2.3 v (2.34 v to be exact). I re-soldered the contacts (properly this time) popped it into my spare PSP 1003 to charge and now the charge light is on.

The only problem with this method is the pcb now no longer reads the charge rate properly! I hope that after continual charging and discharging it will recalibrate it’s self or I may have to find a way to reset the regulator board.

I hope others with this issue find it useful.


Dead Psp Battery!

Dead Psp Battery!

Last year my 2 official psp battery‘s dies and I had to buy new battery’s

I had one silver battery made by some accessories company’s so ordered 2 new ones.

I put one in my psp console and charged it up all fine but 1 year later the new one that never left it’s packing won’t charge and nether will the one that did charge!

They look official despite the recycle badge on them but with less then a years use I suspect there is something up with them.

Grr this is annoying!